2
WARNINGS
Wear working clothes suitable for the operation. In particular, eye protection equipment must be worn to prevent shavings fromgetting into your eyes.
Prepare the working environment before starting the job. Be careful to consider safety when working in high places, beingclose to inflammable materials, in dark places, in rain, in wet place, on scaffolding. Consider falling, fires, electric shock, etc.
Be sure to check if there are any defects in the product before use. Never use the product if it has any defect.
Be sure to turn off the main switch of the drill and disconnect the power supply plug from the socket before attaching anddetaching the product.
Do not touch the product, the shavings, or the drilled surface by hand because they may be hot by drilling friction.
Never remodel or modify the product.
Do not touch moving parts, especially the drill tip or blades.
When you feel anything unusual in use, stop using the product and inspect it as well as the electrical drill.
When using the product for any other application than is specified, be sure to contact UNIKA.
Carefully read the instruction manual of the electrical drill used before using the product.
CAUTION
Do not allow any person other than the working staff to enter the working place.
Do not touch the blades by hand because they are very sharp.
Please read handling description well when changing and assembling.
Use spare parts that comply with the product specification.
The product and its size must be appropriate for the specification of the electrical drill used.
The products carried by this catalog, specifications, etc. may be changed without preliminary announcement .
The products carried in this catalog may be different in color than the actual item.
Safety Precautions
Rotary HammerCore Drill LHC Type
Hammer Core Drill HC Type
Diamond Core Drill DC Type
Braze DiamondCore Drill VPC Type(For PVC Pipe)
Braze DiamondCore Drill FAN Type(For Ventilating Fan)
10
11
12
13
14
Single-functionCore Drill E&S VC Type(Percussion)
Single-functionCore Drill E&S RC Type(Rotation)
Single-functionCore Drill E&S ALC Type(ALC)
Single-functionCore Drill E&S DC Type(Dry Diamond)
Single-functionCore Drill E&S MC Type(Multi)
Single-functionCore Drill E&S FC Type(Compound Material)
4
5
6
7
8
9
CORE DRILLS
CORE DRILLS USAGE CHARTBest suitedSuitableLess suitable
CON
CRET
E
BLOC
K/B
RICK
MOR
TAR
SLAT
E
ALC
JAPA
NES
EW
ALL
HARD
EXTE
RIOR
PAN
EL
SOFT
EXTE
RIOR
PAN
EL
PLAS
TERB
OARD
STON
E
ROOF
TILE
CERA
MIC
TILE
PORC
ELAI
NTI
LE
PLAS
TICS
PVC
ARTI
FICI
ALM
ARBL
E
HUM
EPI
PE
CERA
MIC
PIPE
FRP
VUPI
PE
PVC
PIPE PI
PE
WOO
D/PL
YWOO
D
STEE
L/AL
UMIN
UM
MET
ALSI
DIN
GPA
NEL
2x4'
sin
clud
ing
nails
STAI
NLE
SSST
EEL
*Use water for cooling the cutting edge when drilling ceramic tiles and stone.3
CORE
DRI
LLS
CORE DRILLS
4
CORE
DRI
LLS
Overall Length
Effective Length
Dia
Shank Form10mm/13mm chuckcombination shank
BLOCK / BRICK MORTARSLATE JAPANESE WALL
*PLASTERBOARD EXTERIOR PANELS
Applying vibration and rotation to the cutting edge enablesspeedier drilling by crushing the work material while drilling.A wide lineup of diameter sizes of 22 mm to 220 mm.Uses “10 mm/13 mm chuck combination shank” allowing mostdrill chucks.SDS shanks are also available at the same price.
*Use the rotation mode for plasterboards and soft siding boards.
Equipped with “drillingswarf discharge holes” inconsideration of debris.Drilling swarf discharge holes fordrills with a diameter of 22 - 38 mmpositioned on the body side surface.
“10mm/13mm chuckcombination shank”allows for most drill chuks.
Code Diameter(mm)
OverallLength
(mm)
EffectiveLength
(mm)Code Diameter
(mm)
OverallLength
(mm)
EffectiveLength
(mm)
(Minus)
VibrationRotation
Cutting edge shape
Robust cutting edge angle excels in vibration and striking power.
ES-V (Straight-Shank) ES-V (SDS-Shank)
Single-functionCore Drill Percussion Rotation
Applicable Electric Tool Percussion Drill
Effective Length Please refer to the spec table.
CORE DRILLS
5
CORE
DRI
LLS
Code Diameter(mm)
OverallLength
(mm)
EffectiveLength
(mm)Code Diameter
(mm)
OverallLength
(mm)
EffectiveLength
(mm)
Overall Length
Effective Length
Dia
Shank Form10mm/13mm chuckcombination shank
Adopts a sharp cutting-edge shape which enables speedydrilling only by rotation.Simultaneous pursuit of accuracy and efficiency. Sure andsteady drilling is enabled even for fragile work materials.Uses “10 mm/13 mm chuck combination shank” allowing mostdrill chucks.SDS shanks are also available at the same price.
PVC PLASTERBOARD SLATE BLOCK/BRICKMORTAR JAPANESE WALL ROOF TILE PORCELAIN TILEPLASTIC PORCELAIN PIPE EXTERIOR PANELS
(Plus)
Rotation
Cutting edge shape
Sharp cutting edge angle excels in rotational force.
Equipped with “drillingswarf discharge holes” inconsideration of debris.Drilling swarf discharge holes fordrills with a diameter of 22 - 38 mmpositioned on the body side surface.
“10mm/13mm chuckcombination shank”allows for most drill chuks.
ES-R (Straight-Shank) ES-R (SDS-Shank)
Single-functionCore Drill
Applicable Electric Tool Electric Drill / Percussion Drill (rotating mode)
Effective Length Please refer to the spec table.
Rotation
CORE DRILLS
6
CORE
DRI
LLS
Code Diameter(mm)
OverallLength
(mm)
EffectiveLength
(mm)Code Diameter
(mm)
OverallLength
(mm)
EffectiveLength
(mm)
Compatible with ALC features. Large-bore drilling realized forhard-to-drill materials of ALC panels.Outstanding rotational force enables easy cutting of ALCpanels including piano wires and double reinforcement.Sharp drilling force is provided for the ultra-hard tips of cuttingedges. Adopts high-toughness materials that excel in wearresistance.SDS shanks are also available at the same price.
ALC PANEL PLASTERBOARD
Rotation
Reinforcementbar
Cutting edge shape
Pocket shape prevents jamming ofreinforcement bars.
ES-A (Straight-Shank) ES-A (SDS-Shank)
Single-functionCore Drill Rotation
Applicable Electric Tool Electric Drill / Percussion Drill (rotating mode)
Effective Length Please refer to the spec table.
Overall Length
Effective Length
Dia
Shank Form10mm/13mm chuckcombination shank
Equipped with “drillingswarf discharge holes” inconsideration of debris.Drilling swarf discharge holes fordrills with a diameter of 22 - 38 mmpositioned on the body side surface.
“10mm/13mm chuckcombination shank”allows for most drill chuks.
CORE DRILLS
7
CORE
DRI
LLS
Code Diameter(mm)
OverallLength
(mm)
EffectiveLength
(mm)
Code Diameter(mm)
OverallLength
(mm)
EffectiveLength
(mm)
Capable of drilling reinforced concrete (cutting up to triple-reinforcement) by dry process without using water.Center pin positions only to reduce vibration and noise.Uses “10 mm/13 mm chuck combination shank” allowing mostdrill chucks.SDS shanks are also available at the same price.
*Use water for cooling the cutting edge when drilling ceramic tilesand stone.
REINFORCED CONCRETE HARD EXTERIOR PANELResin-based ARTIFICIAL MARBLE MORTAR EXTRUDED CEMENT PANELSOFT EXTERIOR PANEL BLOCK / BRICK * CERAMIC TILE
RotationDiamond particles
Cutting edge shape
Using diamond particles, drilling is performed through grinding the worked on material.
Handling Method
RotationOnly
Align the center pin withthe drilling position.Hold it tight and turn onthe motor switch.[Rotation mode]
Stop the motor when thecutting edge is insertedapproximately 5 mm and remove thecenter pin.
Lightly press the bodyagainst the drillinggroove and continueoperation.
ES-D (Straight-Shank)
ES-D (SDS-Shank)
Code Diameter(mm)
OverallLength
(mm)
EffectiveLength
(mm)
ES-DH For Hume Pipe (SDS-Shank) Build to order
Single-functionCore Drill Rotation
Applicable Electric Tool Electric Drill / Percussion Drill (rotating mode)
Effective Length Please refer to the spec table.
Overall Length
Effective Length
Dia
Shank Form10mm/13mm chuckcombination shank
CORE DRILLS
8
CORE
DRI
LLS
Code Diameter(mm)
OverallLength
(mm)
EffectiveLength
(mm)Code Diameter
(mm)
OverallLength
(mm)
EffectiveLength
(mm)
Multi-purpose in drilling in siding board walls, plasterboard,FRP, veneer panels, PVC panels, and compound materials etc.Pocket shape in consideration of swarf discharge efficiencyalso facilitates smooth drilling in thick panels and deep holes.SDS shanks are also available at the same price.
SOFT EXTERIOR PANEL P V CF R P PLASTERBOARD
WOOD PLYWOOD
Swarf
Rotation
Cutting edge shape
Pocket shape which efficientlydischarges swarf.
ES-M (Straight-Shank) ES-M (SDS-Shank)
Single-functionCore Drill Rotation
Applicable Electric Tool Electric Drill / Percussion Drill (rotating mode)
Effective Length Please refer to the spec table.
Overall Length
Effective Length
Dia
Shank Form10mm/13mm chuckcombination shank
Equipped with “drillingswarf discharge holes” inconsideration of debris.Drilling swarf discharge holes fordrills with a diameter of 22 - 38 mmpositioned on the body side surface.
“10mm/13mm chuckcombination shank”allows for most drill chuks.
CORE DRILLS
9
CORE
DRI
LLS
Code Diameter(mm)
OverallLength
(mm)
EffectiveLength
(mm)Code Diameter
(mm)
OverallLength
(mm)
EffectiveLength
(mm)
Adopting unique double blade features, with the inner-bladepreceding the outer-blade, boring through material such as;metallic siding, stainless steel/wood siding as well as compoundmaterials (metallic plate + insulating material + plywood) at onego is possible.Swarf is efficiently discharged in boring wooden materials. It isalso possible to bore through several layers of thin steel plates.SDS shanks are also available at the same price.
STEEL / ALUMINUM METAL SIDING PANEL2x4’s including nails WOOD / PLYWOODPVC / FRP PLASTERBOARD STAINLESS STEEL
①
② OutsideInside
Innerblade
Outerblade
Cutting edge shape
Double blade features allow forcutting of nails, drilling on thinsteel plates, wood and sidingmaterials etc.
ES-F (Straight-Shank) ES-F (SDS-Shank)
Single-functionCore Drill Rotation
Applicable Electric Tool Electric Drill / Percussion Drill (rotating mode)
Effective Length Please refer to the spec table.
Overall Length
Effective Length
Dia
Shank Form10mm/13mm chuckcombination shank
Equipped with “drillingswarf discharge holes” inconsideration of debris.Drilling swarf discharge holes fordrills with a diameter of 22 - 38 mmpositioned on the body side surface.
“10mm/13mm chuckcombination shank”allows for most drill chuks.
CORE DRILLS
10
CORE
DRI
LLS
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Overall Length: 235 mm
Effective Length
Dia
Shank Form10mm/13mm chuckcombination shank
VU PIPE RIB PIPEFRPM PIPE PVC PIPE
MARBLE PANEL SOFT EXTERIOR PANEL
Diamond abrasive grit most suitable for drilling in polyvinylchloride pipe to the cutting edge.Prevents drill stopping when drilling rib pipe to achieve stableoperation with no burrs.Expands the “drilling swarf discharge hole” on the flange partto reduce weight.Adopts center pin system enabling simple center positioning.
Effective Length 110 mm
Features of brazed diamondMinimal amount of diamond dislodging, longer life and more grinding force incomparison with electrodeposition because the diamonds are firmly bonded.
Less clogging and stable sharpness because diamonds are largely protruded andthe space between them are deep.
Appropriate motorPower consumption: 500W 8A or more
Rotation speed: 700rpm or more
Precautions on useBraze diamond is only in dry conditions. Do not use water.
Dressing is unnecessary for braze diamond.
Braze diamond cannot be used for steel pipes such as spiral pipes and duct pipes.
“10mm/13mm chuck combination shank”allows for most drill chuks.
Code Diameter(mm)
Center Pin(code)
BZ-VPC (Straight-Shank)
Equipped with “drilling swarf discharge holes”in consideration of debris.
Applicable Electric Tool
Electric Drill /Percussion Drill(rotating mode)
Code Diameter(mm)
Core Drill Size(mm)
BZ-VPC (Center Pin)
Code Diameter(mm)
OverallLength
(mm)
Core Drill Size(mm)
BZ-VPC (Center Drill)
Core Drill Size(mm)
Nominal diameter of pipeinstalled socket (mm)
Matching table of sockets installed for PVC pipes
*Make sure to pay attention to the nominal diameter of socketand actual prepared hole size.
Handling Method
Align the center pin with the drillingposition. Hold it tight and turn onthe motor switch. [Rotation mode]
Stop the motor when the cuttingedge is inserted approximately5mm and remove the center pin.
Lightly press the body against thedrilling groove and continueoperation.
*This drill cannot be used on metallic pipes such as spiral pipes and cast-iron pipes, and metallic plates.
Braze Diamond Core DrillFor PVC Pipe Rotation
CORE DRILLS
11
CORE
DRI
LLS
Code Diameter(mm)
OverallLength
(mm)
Center Drill(code)
BZ-FAN (Straight-Shank)
Code Diameter(mm)
OverallLength
(mm)
Center Drill(code)
BZ-FAN (SDS-Shank)
Features of brazed diamondMinimal amount of diamond dislodging, longer life and more grinding force incomparison with electrodeposition because the diamonds are firmly bonded.
Less clogging and stable sharpness because diamonds are largely protruded andthe space between them are deep.
Appropriate motorPower consumption: 750W 8A or more
Rotation speed: 800rpm or more
Precautions on useBraze diamond is only in dry conditions. Do not use water.
Dressing is unnecessary for braze diamond.
Braze diamond cannot be used for metallic plates, metallic pipes, and wood.
Braze diamond cannot be used for mortar, block and concrete.
“10mm/13mm chuck combination shank”allows for most drill chuks.
Equipped with “drilling swarf discharge holes”in consideration of debris.
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Overall Length
Effective Length
Dia
Shank Form10mm/13mm chuckcombination shank
ALC PANEL (also cutting piano wire and triple reinforcement)
Diamond abrasive grit most suitable for drilling in ALC panelsto the cutting edge.Smoothly cuts piano wire and triple reinforcement, includingALC panels. Prevents drill stopping.Expands the “drilling swarf discharge hole” on the flange partto reduce weight.Adopts a center pin system enabling simple center positioning.
Code Diameter(mm)
OverallLength
(mm)
Core Drill Size(mm)
BZ-FAN (Center Drill) General attachment
CodeOverallLength
(mm)
Core Drill Size(mm)
BZ-FAN (Center Pin) Optional product
MARBLE PANEL SOFT EXTERIOR PANEL
*This core drill cannot be used for metallic plates, metallic pipes, wood, mortar, blocks and concrete.
ALC panel (150 mm thickness)
Also cuts reinforced steel smoothly.
Effective Length 160 mm Applicable Electric Tool
Electric Drill /Percussion Drill(rotating mode)
Braze Diamond Core DrillFor Ventilating Fan Rotation
CORE DRILLS
12
CORE
DRI
LLS
Drill reinforced concrete (up to 10mm-reinforced) with hardlyany impact, low noise, and low load.Easy-to-use center pin system enabling simple centerpositioning.
Appropriate motorPower consumption: 500W or more
Rotation speed: 1000 - 1400rpm or more
Precautions on useDiamond burns and carbonized at high temperatures. Water must be providedduring drilling operations to cool the diamond tip.
Make sure to remove the center pin once the drilling point is positioned.
Avoid cutting the reinforcement wherever possible since it relates to the strengthof the structure.
Handling Method
Align the center pin with the drillingposition. Hold it tight and turn onthe motor switch. [Rotation mode]
Stop the motor when the cuttingedge is inserted approximately 5 mm and remove the center pin.
Lightly press the body against thedrilling groove and continueoperation.Extention shank
Use by inserting between body andwater feed shank.
CodeOverallLength
(mm)
SocketDiameter
(mm)Shank Type
DC (Lubricate Shank)
Should be used for deep holes or penetrating thick walls.
CodeOverallLength
(mm)Application
DC (Extention Shank)
Code
DC (L-type Stopper)
CodeOverallLength
(mm)
Core Drill Size(mm)
DC (Center Pin)
CONCRETEMORTAR
BLOCK / BRICK
STONEHARD EXTERIOR PANELSSLATE
Resin-based ARTIFICIAL MARBLE
ROOF TILECERAMIC TILE PORCELAIN TILE SOFT EXTERIOR PANELS
Overall Length
Effective Length
Dia
Shank Form
Code
ST-Shank SDS-ShankDiameter
(mm)
OverallLength
(mm)
Center Pin(code)
DC (Set)
CodeBody
Length(mm)
DC (Body)
Irrigationstart
Diamond Core Drill Rotation
Applicable Electric Tool Electric Drill / Percussion Drill (rotating mode)
Effective Length 150 mm (Dia:29~38mm) / 130 mm (Dia:50~120mm)
CORE DRILLS
13
CORE
DRI
LLS
Large-bore drilling is possible even with small, lightweighthammer drills which have low striking force.Reduced body thickness and application of special hardeningprocess makes possible high-speed drilling with durability.The inclusion of spiral design for swift swarf removal.Center pin does not require guide plate.
CodeDiameter
(mm)LHC Shanc
Code x Length (mm)Center Pin
(code)
CodeOverallLength
(mm)
Core Drill Size(mm)
CodeOverallLength
(mm)
Core Drill Size(mm)
LHC (Center Pin)
CodeDiameter
(mm)
BodyLength
(mm)
*Center pin required only for positioning is fully made by drilling approx. 5mm, the center pinshould be removed and drilling continued.*Shank configurations are all SDS type.
CONCRETE BLOCK / BRICKMORTAR SLATE
Overall Length: 190 mm
Effective Length
Dia
10mm
Center Pin ShankBody
LHC (Set) LHC (Body)
LHC (Shank)
Handling Method
Screw the shank into the core drill body. Insert and set the center pin while aligning it with hole onthe tip end of the shank.
Attach to the lightweight hammer drill. This completespreparation.
Only the center pin is required for positioning. Oncecomplete positioning is made by drilling to a depth ofapproximately 5 mm, pull out the center pin and continuedrilling operation.
Rotary Hammer Core Drill Hammering Rotation
Applicable Electric Tool Rotary Hammer Drill (SDS)
Effective Length 80 mm
CORE DRILLS
14
CORE
DRI
LLS
Smoothly transmit powerful hammering and rotation force tooffer rapid drilling through reinforced concrete(up to 10mm-reinforced).Extremely thin body incorporates double spiral to eliminatedispersion of drilling force due to swarf. Speed increased 20% ormore compared with conventional products.Cope with thick concrete by using shank sizes up to 450mm long.
CodeDiameter
(mm)HC Shanc
Code x Length (mm)Center Pin
(code)
HC (Set)
CodeDiameter
(mm)
BodyLength
(mm)
HC (Body) With guide plate
*No guide plate as center pin not required.
CodeOverallLength
(mm)
Core Drill Size(mm)
HC (Shank)
CodeOverallLength
(mm)
Core Drill Size(mm)
HC (Center Pin)
CONCRETE BLOCK / BRICKOverall Length: 410 mm
EffectiveLength
Dia
13mm
Center Pin
BodyGuide Plate
Hammer Core Drill Hammering Rotation
Applicable Electric Tool Hammer Drill
Effective Length 100 mm
CORE DRILLS
15
CORE
DRI
LLS
Diameter(mm)
Code
HC (Guide Plate) Compatible MotorsHa
mm
erDr
illManufacturer Model No.
Handling Method
Screw the shank into the core drill body.*When removing the core body and the shank, place thebody facing upward while inserted into the main unit andstrike a few times to loosen the round screw.
Insert and set the center pin while aligning it with hole onthe tip end of the shank. Attach a guide plate to the setcenter pin.
Attach to the hammer drill as in the case with theconventional hexagonal shank drill and bull point.
Only the center pin is required for positioning. Pull out thecenter pin once the work material is drilled to a depth ofapproximately 5 mm and the drill tip end stops turning,then continue drilling operation.
Drilling testTest conditionsCore size used / 55 mmMaterial / Concrete (strength 250 kg)Drill depth / 100 mm
Test resultsDrilling time / 5 minsNo. of times maintained
/ Over 100 times
Drilling test dataDemonstrates 20 % increase in speed over previous products.[When drilling reinforced concrete (250 kg/cm2 compressive strength) with HC 75 mm]
5 10 15 20 mm / min
Thin cutter HC-75 (Unika) approx 18 mm
approx 11 mm(Previous product)
*Triple-reinforced requires 7 - 8 mins, double-reinforced requires 3 - 4 mins.
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